Michael Jackson's Daughter -- Destroyer of Wide Receivers

Michael Jackson's Daughter

Destroyer of Wide Receivers

10/26/2011 8:40 AM PDT BY TMZ STAFF

Like a 13-year-old Mike Singletary ... Paris Jackson was a focused instrument of destruction as a linebacker during a flag football game in L.A. yesterday.

Jackson -- who's the very first female in the history of her private school to join the squad -- also played a little offensive line ... and got STRAIGHT UP PHYSICAL with the boys, throwing some pretty aggressive blocks.

But Paris wasn't the only celebu-spawn on the gridiron ... Oksana Grigorieva and Timothy Dalton were standing on the sidelines to support their son, Alexander, who's also on PJ's team.

Jackson's school emerged victorious ... and after the game, she tweeted about it ... saying, "We Won 32-6!!!!!!!! Yeahhh Boiiiiii!"

HERE'S THE RUNDOWN David Beckham Loses Control Of His Motorcycle In Hollywood Tom Hanks Blasts FIFA Over Women's World Cup Usain Bolt Uses Chris Brown & Drake To Impress Rihanna Country Legend Rips The NFL Over Half Time Show